Freezing apparatus.



F. DICKSON. v

FREEZING APPARATUS,

APPLIUATION FILED FEET], 1912.

1,039,655. Pa n ed Sept. 24,1912.

2 SHEETS-SHEET 1.

M557 jrwerzizrn' v o ye M W 3 FREEZING APPARATUS.

I APPLICATION FILED FEBJ, 1912; 1 039 655. Patented Sept. 24, 1912.

2 SHEETS-SHEET 2.

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v us" ed to a suitable power source. The inlet end of said pump isconnected to and receives its supply of brine from the outlet pipe 13 ofthe lower tray 3 above described. 5 18 is a pipe extending from theoutlet of the pump 16 to the lower end of the refrigerating chamber ofthe freezer 1 above referred to, and adapted to convey the cooled brinefrom the bottom of the tray 3 to the lower end of said refrigeratingchamber.

19 is a branch pipe connecting the pump outlet pipe 18 with the brinereturn pipe 14 -aforesaid.

is a three-way valve arranged at the point of connect-ion of theaforesaid pipes 18 and 19, and adapted to direct the flow of the cooledbrine to the refrigerating chamber of the freezer 1, or to the brinereturn 20 pipe 14 directly, at different stages of the operation. Thelast mentioned control is intended for use in starting up the apparatusand where the brine has not attained the required low temperature, andsuch control is adapted to afford a short path for the brine from thetray 3 to the mass of broken ice arranged above said tray in the shell5, to attain the required low temperature in the brine.

Having thus fully described my said invention what I claim as new anddesire to secure by Letters Patent, is

1. In a freezing apparatus of the type herein described, a brine coolingtub comprising a lower open top tray formed with an annular shoulder inits upper margin, a strainer plate resting upon said shoulder, and anupper shell formed with a foraminous bottom fitting within'the uppermargin of the tray above said strainer plate, substantially as setforth.

2. In a freezing apparatus of the type herein described, a brine coolingtub comprising a lower open top tray formed with an annular shoulder inits upper margin, a strainer plate resting upon said shoulder, an uppershell having a foraminous bottom, and a hoop encircling the bottom ofsaid shell and formed with an outer upwardly projecting flange, an innerdownwardly projecting flange fitting within the upper margin of the trayand a horizontal web con necting said flanges, substantially as setforth.

Signed at Chicago, Illinois, this 1st day of February 1912.

GEORGE F. DICKSON. l/Vitnesses:

ROBERT BURNS, HENRY Mon.

